The thunderstorms Sunday afternoon through Monday morning brought rain to a good part of central Alabama. Temperatures stayed much cooler yesterday as a result (BHM high was 88 degrees, as opposed to 103 the day before), especially with the clouds around. The rain also helped moisten up the ground some, so some of the sun's energy is going into evaporating that water. Consequently, even though the sun is back out in full force today, temperatures are generally not quite as hot as they were over the weekend. But, highs will still reach the upper 90s in most locations this afternoon, and with the extra humidity, the heat index will be over 100.
The atmosphere has a lot more humidity in it now than it did last week, too, so scattered thunderstorms will likely occur again this afternoon and the next 2 or 3 afternoons. Today, the best chance of rain is south of I-20.
The heat over the next 2-3 days will still be dangerous, especially with the high humidity. Heat index in some spots could reach 105-110. The NWS has issued a heat advisory, so continue to take precautions about the heat. Drink plenty of fluids, and if you're outside take frequent breaks in the shade. If you start to feel sick, remember that heat exhaustion and heat stroke are serious and you should call 911.
Dr. Tim Coleman